Description from: https://www.vivobarefoot.com/dk/womens/everyday/opanka-leather-womens
If you want to come by to see this model, and try it on, you'll find it in
-The Vivobarefoot Concept store, Badstuestræde 2
The Opanka is Vivo's simple and stylish barefoot slip-on, made in Portugal using local leather. Light, flexible, and breathable, this shoe was built for easy transition from work to play. Featuring an ultra-thin sole, this style is the ideal blend of barefoot freedom and smart-casual style. Dress up for meetings, or dress down for drinks - the Opanka is your ultimate workweek companion.
This shoe features leather in its design and construction.